Element: <oj-menu-button>

Oracle® JavaScript Extension Toolkit (JET)
15.1.0
F83698-01

Since:
  • 4.0.0
Module:
  • ojbutton

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Slots

Attributes

Events

Methods

Other Topics


<oj-menu-button id="menuButton">
  <oj-menu id="menu" slot="menu" style="display:none">
      <oj-option>Item 1</oj-option>
      <oj-option>Item 2</oj-option>
      <oj-option>Item 3</oj-option>
  </oj-menu>
</oj-menu-button>

Buttonsets and Toolbars

The JET Buttonset component can be used to create toggle buttons or group related buttons. It cannot be used to create menu buttons or regular push buttons. Buttonset provides visual and semantic grouping and WAI-ARIA-compliant focus management. See the Buttonset API doc for more information.

Menu buttons, push buttons, and buttonsets can be placed in a JET Toolbar. Like Buttonset, Toolbar is themable and provides WAI-ARIA-compliant focus management. See the Toolbar API doc for more information.

Touch End User Information

Target Gesture Action
Push Button Tap Push the button.
Toggle Button Tap Toggle the button.
Menu Button Tap Open the menu.

See also the Menu touch gesture doc.

Keyboard End User Information

Target Key Action
Push Button Enter or Space* Push the button.
Toggle Button Enter or Space Toggle the button.
Menu Button Enter, Space*, or DownArrow Open the menu.
Esc Close the menu.

* Some types of Push and Menu Buttons support Enter, not Space.

See the Menu keyboard doc for keystrokes that apply when focus is on the menu.

Accessibility

For accessibility, it is not required to set an aria label on a JET Menu Button as it uses the text in the default slot to generate an aria label. Therefore the default slot should be filled even if the button is icon-only (display=icons). However, you can override the default behavior by setting aria-label or aria-labelledby.

See also the oj-focus-highlight discussion.

Disabled content: JET supports an accessible luminosity contrast ratio, as specified in WCAG 2.0 - Section 1.4.3 "Contrast", in the themes that are accessible. (See the "Theming" chapter of the JET Developer Guide for more information on which themes are accessible.) Note that Section 1.4.3 says that text or images of text that are part of an inactive user interface component have no contrast requirement. Because disabled content may not meet the minimum contrast ratio required of enabled content, it cannot be used to convey meaningful information.

Performance

In lieu of stamping a menu button in a table, dataGrid, or other container, consider placing a single Menu Button outside of the container that acts on the currently selected row or cell.

Setting Component State

Built-in KO bindings, like KO's disable binding, should not be used for state with a JS API, since that is tatamount to updating the DOM directly. The component attribute should be bound instead.

State with no JS API should be set by manipulating the DOM directly in an allowable way, and then calling refresh() on the affected component(s). E.g. the reading direction (LTR / RTL) is changed by by setting the "dir" attribute on the <html> node and calling refresh().

When using a built-in Knockout binding, keep in mind that those bindings do not execute the necessary refresh() call after updating the DOM. Updates that flow from the component to the observable, as a result of user interaction, are not problematic. But updates in the other direction, that programmatically update the DOM because the observable changed, will not be picked up until the next refresh().


Usage

Signature:

interface MenuButtonElement extends ojButton<ojMenuButtonSettableProperties>

Typescript Import Format
//To typecheck the element APIs, import as below.
import { MenuButtonElement } from "ojs/ojbutton";

//For the transpiled javascript to load the element's module, import as below
import "ojs/ojbutton";

For additional information visit:

Note: Application logic should not interact with the component's properties or invoke its methods until the BusyContext indicates that the component is ready for interaction.


Styling Classes

Category: Button Size

Makes the button small or large.

Classes:

.oj-button-sm
.oj-button-lg

Slots

JET components that allow child content support slots. Please see the slots section of the JET component overview doc for more information on allowed slot content and slot types.

Default

The default slot is the menu button's text label. The <oj-menu-button> element accepts plain text or DOM nodes as children for the default slot. A default slot label is required for all menu buttons for accessibility purposes. The label can be hidden using the display attribute.

If a text node is provided it will be wrapped in a span.

contextMenu

The contextMenu slot is set on the oj-menu within this element. This is used to designate the JET Menu that this component should launch as a context menu on right-click, Shift-F10, Press & Hold, or component-specific gesture. If specified, the browser's native context menu will be replaced by the JET Menu specified in this slot.

The application can register a listener for the Menu's ojBeforeOpen event. The listener can cancel the launch via event.preventDefault(), or it can customize the menu contents by editing the menu DOM directly, and then calling refresh() on the Menu.

To help determine whether it's appropriate to cancel the launch or customize the menu, the ojBeforeOpen listener can use component API's to determine which table cell, chart item, etc., is the target of the context menu. See the JSDoc of the individual components for details.

Keep in mind that any such logic must work whether the context menu was launched via right-click, Shift-F10, Press & Hold, or component-specific touch gesture.

Deprecated:
Since Description
13.0.0 This web component no longer supports launching a context menu.

endIcon

The endIcon slot is the menu button's end icon. The <oj-menu-button> element accepts DOM nodes as children with the endIcon slot. If no end icon is provided, a default end icon is used.

The menu menu associated with the menu button. The oj-menu-button element accepts a single oj-menu element as a child with the menu slot. See the JET Menu for more information on setting up a menu.

startIcon

The startIcon slot is the menu button's start icon. The <oj-menu-button> element accepts DOM nodes as children with the startIcon slot.

Attributes

chroming :"solid"|"outlined"|"borderless"|"full"|"half" chroming :"solid"|"outlined"|"borderless"

Indicates in what states the button has chrome (background and border).

The default chroming varies by theme and containership as follows:

  • If the button is in a buttonset or toolbar, then the default chroming is the current chroming value of the nearest such container.
  • Else, the default chroming value is controlled by the theme.

Once a value has been set on this button attribute, that value applies regardless of theme and containership.

Supported Values:
Value Description
borderless Borderless buttons are the least prominent variation. Borderless buttons are useful for supplemental actions that require minimal emphasis.
full Please use solid instead. In typical themes, full-chrome buttons always have chrome.
Deprecated:
Since Description
6.0.0 This value will be removed in the future. Please use solid instead.
half In typical themes, half-chrome buttons acquire chrome only in their hover, active, and selected states.
Deprecated:
Since Description
6.0.0 This value will be removed in the future. Please use borderless instead.
outlined Outlined buttons are salient, but lighter weight than solid buttons. Outlined buttons are useful for secondary actions.
solid Solid buttons stand out, and direct the user's attention to the most important actions in the UI.
Names
Item Name
Property chroming
Property change event chromingChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-chroming-changed

disabled :boolean

Disables the button if set to true.

After create time, the disabled state should be set via this API, not by setting the underlying DOM attribute.

Default Value:
  • false
Names
Item Name
Property disabled
Property change event disabledChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-disabled-changed

display :"all"|"icons"|"label"

Whether to display both the label and icons ("all") or just the label ("label") or just the icons ("icons"). In the latter case, the label is displayed in a tooltip instead, unless a tooltip was already supplied at create time.

For accessibility, a JET Menu Button must always have a label set via the default slot, even if it is icon-only.

Supported Values:
Value Description
all Display both the label and icons.
icons Display only the icons.
label Display only the label.
Default Value:
  • "all"
Names
Item Name
Property display
Property change event displayChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-display-changed

(nullable) label :string

Text to show in the button. The label attribute takes precedence over the default DOM slot.

Values set on this option, at create time or later, are treated as plain text, not HTML. If the label is specified via DOM at create time, that HTML content is kept.

For accessibility, a JET Button must always have a label, even if it is icon-only.

Names
Item Name
Property label
Property change event labelChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-label-changed

translations :object|null

A collection of translated resources from the translation bundle, or null if this component has no resources. Resources may be accessed and overridden individually or collectively, as seen in the examples.

If the component does not contain any translatable resource, the default value of this attribute will be null. If not, an object containing all resources relevant to the component.

If this component has translations, their documentation immediately follows this doc entry.

Names
Item Name
Property translations
Property change event translationsChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-translations-changed

Events

ojAction

Triggered when a button is clicked. This will be triggered by keyboard events as well as mouse/touch events.

To ensure keyboard accessibility, the only correct, supported way to react to the click of a button is to listen for this event. Click listeners should not be used.

See Events and Listeners for additional information.

Since:
  • 5.0.0

Methods

getProperty(property) : {any}

Retrieves the value of a property or a subproperty. The return type will be the same as the type of the property as specified in this API document. If the method is invoked with an incorrect property/subproperty name, it returns undefined.
Parameters:
Name Type Description
property string The property name to get. Supports dot notation for subproperty access.
Since:
  • 4.0.0
Returns:
Type
any
Example

Get a single subproperty of a complex property:

let subpropValue = myComponent.getProperty('complexProperty.subProperty1.subProperty2');

refresh : {void}

Refreshes the component.
Returns:
Type
void

setProperties(properties) : {void}

Performs a batch set of properties. The type of value for each property being set must match the type of the property as specified in this API document.
Parameters:
Name Type Description
properties Object An object containing the property and value pairs to set.
Since:
  • 4.0.0
Returns:
Type
void
Example

Set a batch of properties:

myComponent.setProperties({"prop1": "value1", "prop2.subprop": "value2", "prop3": "value3"});

setProperty(property, value) : {void}

Sets a property or a subproperty (of a complex property) and notifies the component of the change, triggering a [property]Changed event. The value should be of the same type as the type of the attribute mentioned in this API document.
Parameters:
Name Type Description
property string The property name to set. Supports dot notation for subproperty access.
value any The new value to set the property to.
Since:
  • 4.0.0
Returns:
Type
void
Example

Set a single subproperty of a complex property:

myComponent.setProperty('complexProperty.subProperty1.subProperty2', "someValue");